How to add numbers in an editText

Question

I am new to java dev. I want to add numbers in an editText. i.e if user types in 15 in editText, it should add the numbers 1 + 5 giving the result 6. Is there a function for it in java. In C# it is ToCharArray() but I don't know what it's called in java. Thanks

Bala R · Accepted Answer · 2011-03-29 19:48:20Z

1

you can use

    String str = "15";
    char[] cArray = str.toCharArray();

    int sum = 0;
    for (char c : cArray)
        sum += Character.digit(c, 10);

edited Mar 29, 2011 at 19:48

answered Mar 24, 2011 at 0:33

Bala R

109k23 gold badges203 silver badges212 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

artist Over a year ago

I am using the above code, but the app seems to crash.Also I am getting error (cannot parse int here) when I try to use sum += Integer.parseInt(c) Any help will be great.

artist Over a year ago

Also how can i put the result in a textview. I am using textv.setText(sum) but it doesn't seems to be working.

Bala R Over a year ago

@artist try my edit for the error. As far as the textView, textv.setText(sum.toString()) should work.

artist Over a year ago

still says that application has stopped unexpectedly.

artist Over a year ago

It works now. I want to know what does 10 stands for in the above code sum += Character.digit(c, 10); Thanks

|

Ernest Friedman-Hill · Accepted Answer · 2011-03-24 00:33:41Z

1

When translating between C# and Java, you can get very far by doing nothing more than changing the capitalization. The equivalent method in Java's String class is "toCharArray()", starting with a lower-case "t".

answered Mar 24, 2011 at 0:33

Ernest Friedman-Hill

81.9k11 gold badges158 silver badges192 bronze badges

Collectives™ on Stack Overflow

How to add numbers in an editText

2 Answers 2

6 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

6 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related